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find() cost unreasonable time!

? > Would you please give another advices? You can keep the refresh and also use locking. This is not related to moving from
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First query takes 4+ minutes to complete

" sync="false" path="$objectdb/" mode="write" /> <locking version-check="true" />
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Getting exception while executing the Query

I have facing a problem when i am executing the query first time, Please find the stack trace below java.lang.InterruptedException at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireSharedInterruptibly(AbstractQueuedSynchronizer.java:1301) at java.util.concurrent.Semaphore.acquire
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java.nio.channels.OverlappingFileLockException

locking conflict. In embedded mode the database cannot be opened by more than one user (process
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javax.jdo.JDONullIdentityException: The identity must not be null.

#2 reflects a locked database file (due to a failure during close) and not a corrupted database
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Multithreading Test and Deadlock

because of higher memory usage (4 x 10,000 x 100 strings x attribute length => many MBs). Thanks. It solved the dead lock. edy_at_ssn
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NPE at com.objectdb.jpa.JpaQuery.getResultList

(); } } It seems as a separate issue. Maybe related to pessimistic locking
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ObjectDB version 2.1 has been released

the download). Added support of disabling optimistic locking exceptions. Added support of url
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Out of memory

" /> <locking version-check="true" />
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OutofMemory error with Object DB 2.0

="." max="128mb" /> <locking